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Becoming data-driven company in today's fast-paced digital-world requires seeking a big data driven-business. Because managing these data to enable insight's generation is difficult using traditional management systems, various enterprises prefer outsourcing their data to a Cloud service provider that maintain suitable infrastructures. However, these companies need to ensure that their data are securely stored and computations are correctly performed. In this paper, we propose a model that leads big data owners to verify the integrity of their big data computations returned by the Cloud servers.